CAIRN is a
DARPA sponsored high-speed network testbed connecting multiple universities
and research institutions. HSFC is now part of the
CAIRN-2.5 source distribution.
As a collaboration between CMU and ISI East, the VNS project is
creating a set of tools to provide a virtual network service on
CAIRN. Using HFSC as the basis, this service will enable researchers
using CAIRN as their platform to have easy and full control over the
communication quality between experiment end-points and routers.

At ETH Zurich and Washington University, researchers of
the Router
Plugins project designed and implemented a high performance,
modular, extended integrated services router software architecture in
the NetBSD kernel. Code modules, called plugins, can be dynamically
added and configured at run time. HFSC is being used in this
architecture as a packet scheduling plugin.

As a collaboration between Carnegie Mellon University, Rice University,
University of Virginia, and MCI Telecommunications, supported by the
Special Projects in Networking Program of the National Science Foundation, the
INDRA project is
developing the theoretical underpinnings of an integrated set of network
control algorithms for the Next Generation Internet and building a complete
prototype implementation of the proposed algorithms on the
vBNS network.
The H-FSC QoS Kernel is used as part of the infrastructure.